Created
May 25, 2024 00:40
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WASI versions of ESBuild & QuickJS compiler for JS Hooks - fully client side
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| <! -- Demo here: https://zoq4jb3.dlvr.cloud/index.html --> | |
| <html> | |
| <head> | |
| <style> | |
| pre { | |
| border: 1px solid red; | |
| padding: 10px; | |
| margin: 10px; | |
| } | |
| </style> | |
| </head> | |
| <body style="font-family: system-ui;"> | |
| <pre id="ts">// Sample | |
| const str: string = "Some content"; | |
| console.log(str)</pre> | |
| <pre id="js"></pre> | |
| <pre id="bc"></pre> | |
| <script type="module"> | |
| import { WASI } from 'https://cdn.jsdelivr.net/npm/@runno/[email protected]/+esm' | |
| import { Buffer } from 'https://cdn.jsdelivr.net/npm/[email protected]/+esm' | |
| // Setup a proxy to fetch release from GH and add CORS & correct wasm MIME | |
| const binaries = { | |
| esbuild: 'https://github-release.dlvr.cloud/XRPL-Labs/jshooks-esbuild/releases/download/autorelease/esbuild.wasm', | |
| qjsc: 'https://github-release.dlvr.cloud/XRPL-Labs/jshooks-quickjs-runtime/releases/download/autorelease/qjsc.wasm' | |
| } | |
| const stdout = (...args) => console.info(...args) | |
| const stderr = (...args) => console.info(...args) | |
| const ts2js = content => new Promise(resolve => { | |
| const esbuild = WASI.start(fetch(binaries.esbuild), { | |
| args: ['esbuild', 'file.ts', '--bundle', '--minify', '--platform=browser', '--format=esm', '--target=es2017', '--outfile=file.js'], | |
| stdout, stderr, | |
| fs: { | |
| "/file.ts": { | |
| mode: "string", path: "/file.ts", timestamps: { access: new Date(), change: new Date(), modification: new Date(), }, | |
| content, | |
| }, | |
| }, | |
| }) | |
| esbuild.then(({ fs: js }) => resolve(Buffer.from(js?.['/file.js']?.content).toString())) | |
| }) | |
| const js2bc = content => new Promise(resolve => { | |
| const qjsc = WASI.start(fetch(binaries.qjsc), { | |
| args: ["qjsc", "-c", "-o", "/hook.bc", '/hook.js'], | |
| stdout, stderr, | |
| fs: { | |
| "/hook.js": { | |
| mode: "string", path: "/hook.js", timestamps: { access: new Date(), change: new Date(), modification: new Date(), }, | |
| content, | |
| }, | |
| }, | |
| }) | |
| qjsc.then(({ fs: bc }) => resolve(Buffer.from(bc?.['/hook.bc']?.content).toString())) | |
| }) | |
| // Magic!! | |
| ts2js(document.getElementById('ts').innerText) | |
| .then(js => { | |
| document.getElementById('js').innerText = js | |
| return js2bc(js) | |
| }).then(bc => { | |
| document.getElementById('bc').innerText = bc | |
| console.log(bc) | |
| }) | |
| </script> | |
| </body> | |
| </html> |
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